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GETCO Exam Paper (22-07-2015)

GETCO Exam Paper (22-07-2015)
Current chopping phenomenon is related to

asymmetrical current
small inductive current
capacitance switching
resistance switching

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GETCO Exam Paper (22-07-2015)
In the standard B-H curve X axis and Y axis intercepts respctively represents

coercive force and residual magnetism
Hysteresis loss and Flux
Flux and MMF
residual magnetism and coercive force

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GETCO Exam Paper (22-07-2015)
HVDC transmission is preferred to EHV AC because

VAR compensation is not required in it
Its terminal equipment are inexpensive
System stability can be improved
Harmonic problem is avoided

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GETCO Exam Paper (22-07-2015)
The magnitude of sum of two sinusoidal AC voltages is equal to the magnitude of each individual voltage, What must be the phase difference between voltages?

120
60
90
180

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GETCO Exam Paper (22-07-2015)
In G-S method of power flow problem, the number of iterations _____

remains fixed
depends on voltage control buses
depends on no of buses
depends on tolerance

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GETCO Exam Paper (22-07-2015)
Switching surges are

power frequency voltage
high voltage Acs
high votage DCs
short duration transient voltage

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MORE MCQ ON GETCO Exam Paper (22-07-2015)

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